Adds the following tools for Postgres:
(1) list_stored_procedure: Retrieves stored procedure metadata returning
schema name, procedure name, procedure owner, language, definition, and
description, filtered by optional role name (procedure owner), schema
name, and limit (default 20).
<img width="3808" height="1181" alt="image"
src="https://github.com/user-attachments/assets/43513a04-95ce-478f-a59f-3e5dafdb6b23"
/>
<img width="2654" height="1288" alt="image"
src="https://github.com/user-attachments/assets/84aca162-3779-4daa-ae2f-61620560589f"
/>
> Should include a concise description of the changes (bug or feature),
it's
> impact, along with a summary of the solution
## PR Checklist
> Thank you for opening a Pull Request! Before submitting your PR, there
are a
> few things you can do to make sure it goes smoothly:
- [x] Make sure you reviewed
[CONTRIBUTING.md](https://github.com/googleapis/genai-toolbox/blob/main/CONTRIBUTING.md)
- [x] Make sure to open an issue as a
[bug/issue](https://github.com/googleapis/genai-toolbox/issues/new/choose)
before writing your code! That way we can discuss the change, evaluate
designs, and agree on the general idea
- [x] Ensure the tests and linter pass
- [x] Code coverage does not decrease (if any source code was changed)
- [x] Appropriate docs were updated (if necessary)
- [x] Make sure to add `!` if this involve a breaking change
🛠️Fixes#1738
Adds the following tools for Postgres:
(1) list_table_stats: Lists table statistics in the database. .
<img width="3446" height="1304" alt="image"
src="https://github.com/user-attachments/assets/68951edc-8d99-460e-a1ac-2d3da9388baf"
/>
<img width="2870" height="1338" alt="image"
src="https://github.com/user-attachments/assets/100a3b7d-202d-4dfd-b046-5dab4390ba41"
/>
> Should include a concise description of the changes (bug or feature),
it's
> impact, along with a summary of the solution
## PR Checklist
> Thank you for opening a Pull Request! Before submitting your PR, there
are a
> few things you can do to make sure it goes smoothly:
- [x] Make sure you reviewed
[CONTRIBUTING.md](https://github.com/googleapis/genai-toolbox/blob/main/CONTRIBUTING.md)
- [x] Make sure to open an issue as a
[bug/issue](https://github.com/googleapis/genai-toolbox/issues/new/choose)
before writing your code! That way we can discuss the change, evaluate
designs, and agree on the general idea
- [x] Ensure the tests and linter pass
- [x] Code coverage does not decrease (if any source code was changed)
- [x] Appropriate docs were updated (if necessary)
- [x] Make sure to add `!` if this involve a breaking change
🛠️Fixes#1738
## Description
Adds a postgresql custom list_roles tool, that lists all the
user-created roles in the instance. It provides details about each
role's attributes and memberships.
> Should include a concise description of the changes (bug or feature),
it's
> impact, along with a summary of the solution
![Uploading Screenshot 2025-11-26 at 1.16.42 AM.png…]()
<img width="1065" height="145" alt="Screenshot 2025-11-26 at 12 59
56 AM"
src="https://github.com/user-attachments/assets/d90131b1-d369-4108-b4db-ee5dc9aafe38"
/>
## PR Checklist
> Thank you for opening a Pull Request! Before submitting your PR, there
are a
> few things you can do to make sure it goes smoothly:
- [x] Make sure you reviewed
[CONTRIBUTING.md](https://github.com/googleapis/genai-toolbox/blob/main/CONTRIBUTING.md)
- [x] Make sure to open an issue as a
[bug/issue](https://github.com/googleapis/genai-toolbox/issues/new/choose)
before writing your code! That way we can discuss the change, evaluate
designs, and agree on the general idea
- [x] Ensure the tests and linter pass
- [x] Code coverage does not decrease (if any source code was changed)
- [x] Appropriate docs were updated (if necessary)
- [ ] Make sure to add `!` if this involve a breaking change
🛠️ Fixes #<1738>
Co-authored-by: Wenxin Du <117315983+duwenxin99@users.noreply.github.com>
## Description
Adds a postgresql custom list_tablespaces tool, that returns the details
of tablespaces present in database.
<img width="1719" height="698" alt="Screenshot 2025-11-12 at 9 11 13 AM"
src="https://github.com/user-attachments/assets/03964a1b-27e0-4da8-85a2-57db905163ed"
/>
<img width="1077" height="141" alt="Screenshot 2025-11-12 at 9 12 42 AM"
src="https://github.com/user-attachments/assets/f93f5692-eb62-4f30-8192-40c8873d4d00"
/>
> Should include a concise description of the changes (bug or feature),
it's
> impact, along with a summary of the solution
Lists all tablespaces in the database. Returns the tablespace name,
owner name, size in bytes, internal object ID, the access control list
regarding permissions, and any specific tablespace options.
## PR Checklist
> Thank you for opening a Pull Request! Before submitting your PR, there
are a
> few things you can do to make sure it goes smoothly:
- [x] Make sure you reviewed
[CONTRIBUTING.md](https://github.com/googleapis/genai-toolbox/blob/main/CONTRIBUTING.md)
- [x] Make sure to open an issue as a
[bug/issue](https://github.com/googleapis/genai-toolbox/issues/new/choose)
before writing your code! That way we can discuss the change, evaluate
designs, and agree on the general idea
- [x] Ensure the tests and linter pass
- [x] Code coverage does not decrease (if any source code was changed)
- [x] Appropriate docs were updated (if necessary)
- [x] Make sure to add `!` if this involve a breaking change
🛠️Fixes#1738
## Description
Adds a postgresql custom list_publication_tables tool, that returns the
details of publication tables present in database.
Test Output:
<img width="845" height="239" alt="Screenshot 2025-11-11 at 12 50 59 AM"
src="https://github.com/user-attachments/assets/b7606e44-c5f6-4fc7-865e-7efadd112eff"
/>
<img width="1529" height="648" alt="Screenshot 2025-11-11 at 1 15 18 AM"
src="https://github.com/user-attachments/assets/6192b772-f0bc-4fb4-8032-ca487434d77c"
/>
> Should include a concise description of the changes (bug or feature),
it's
> impact, along with a summary of the solution
## PR Checklist
> Thank you for opening a Pull Request! Before submitting your PR, there
are a
> few things you can do to make sure it goes smoothly:
- [x] Make sure you reviewed
[CONTRIBUTING.md](https://github.com/googleapis/genai-toolbox/blob/main/CONTRIBUTING.md)
- [x] Make sure to open an issue as a
[bug/issue](https://github.com/googleapis/genai-toolbox/issues/new/choose)
before writing your code! That way we can discuss the change, evaluate
designs, and agree on the general idea
- [x] Ensure the tests and linter pass
- [x] Code coverage does not decrease (if any source code was changed)
- [x] Appropriate docs were updated (if necessary)
- [x] Make sure to add `!` if this involve a breaking change
🛠️Fixes#1738
Co-authored-by: Averi Kitsch <akitsch@google.com>
Co-authored-by: Wenxin Du <117315983+duwenxin99@users.noreply.github.com>
## Description
Add a read-only PostgreSQL custom list_schemas tool, that returns the
schemas present in the database excluding system and temporary schemas.
Returns the schema name, schema owner, grants, number of functions,
number of tables, and number of views within each schema.
<img width="1985" height="1043" alt="Screenshot 2025-10-20 at 7 45
45 PM"
src="https://github.com/user-attachments/assets/8c4f0bb8-587c-489a-8795-efa79e92b06f"
/>
<img width="3372" height="1694" alt="3NpZG7W6h3XGsM7"
src="https://github.com/user-attachments/assets/370b5440-cc48-4c4e-82ea-4fd508cbcf2b"
/>
> Should include a concise description of the changes (bug or feature),
it's
> impact, along with a summary of the solution
## PR Checklist
> Thank you for opening a Pull Request! Before submitting your PR, there
are a
> few things you can do to make sure it goes smoothly:
- [x] Make sure you reviewed
[CONTRIBUTING.md](https://github.com/googleapis/genai-toolbox/blob/main/CONTRIBUTING.md)
- [x] Make sure to open an issue as a
[bug/issue](https://github.com/googleapis/genai-toolbox/issues/new/choose)
before writing your code! That way we can discuss the change, evaluate
designs, and agree on the general idea
- [x] Ensure the tests and linter pass
- [x] Code coverage does not decrease (if any source code was changed)
- [x] Appropriate docs were updated (if necessary)
- [x] Make sure to add `!` if this involve a breaking change
🛠️ Fixes #<issue_number_goes_here>
Co-authored-by: Yuan Teoh <45984206+Yuan325@users.noreply.github.com>
## Description
Adds a read-only PostgreSQL custom list_views tool, that returns the
details of views present in database. Each row includes: schema_name,
view_name, owner_name
Test Output:
<img width="2433" height="1274" alt="Screenshot 2025-10-19 at 3 59
31 PM"
src="https://github.com/user-attachments/assets/76e1e994-390a-4239-aba7-0d02253bbcc4"
/>
<img width="2533" height="1017" alt="Screenshot 2025-10-19 at 4 07
25 PM"
src="https://github.com/user-attachments/assets/537fbddd-d862-4044-a09b-cb9f180c21fa"
/>
## PR Checklist
> Thank you for opening a Pull Request! Before submitting your PR, there
are a
> few things you can do to make sure it goes smoothly:
- [x] Make sure you reviewed
[CONTRIBUTING.md](https://github.com/googleapis/genai-toolbox/blob/main/CONTRIBUTING.md)
- [x] Make sure to open an issue as a
[bug/issue](https://github.com/googleapis/genai-toolbox/issues/new/choose)
before writing your code! That way we can discuss the change, evaluate
designs, and agree on the general idea
- [x] Ensure the tests and linter pass
- [x] Code coverage does not decrease (if any source code was changed)
- [x] Appropriate docs were updated (if necessary)
- [x] Make sure to add `!` if this involve a breaking change
🛠️Fixes#1738
Co-authored-by: Averi Kitsch <akitsch@google.com>
## Description
This PR adds two read-only, PostgreSQL tool kinds to MCPToolbox that
standardize discovery of extensions:
- `postgres-list-installed-extensions` – lists extensions installed in
the current database with: `name`, `version`, `schema`, `owner`
`description`.
- `postgres-list-available-extensions` – lists extensions available to
install on the cluster with: `name`, `default_version`, `description`.
Both are safe by default, and return well-typed JSON suitable for UIs,
agents, and automation.
**Test Output**
- `list_installed_extensions`
<img width="1414" height="781" alt="image"
src="https://github.com/user-attachments/assets/aab102a7-90ab-4516-9bc2-bcbfdab02bb1"
/>
- `list_available_extensions`
<img width="1421" height="774" alt="image"
src="https://github.com/user-attachments/assets/a4f80f22-bb2e-4350-acb2-12eb020d88cb"
/>
---
> Should include a concise description of the changes (bug or feature),
it's
> impact, along with a summary of the solution
## PR Checklist
---
> Thank you for opening a Pull Request! Before submitting your PR, there
are a
> few things you can do to make sure it goes smoothly:
- [x] Make sure you reviewed
[CONTRIBUTING.md](https://github.com/googleapis/genai-toolbox/blob/main/CONTRIBUTING.md)
- [x] Make sure to open an issue as a
[bug/issue](https://github.com/googleapis/genai-toolbox/issues/new/choose)
before writing your code! That way we can discuss the change, evaluate
designs, and agree on the general idea
- [x] Ensure the tests and linter pass
- [x] Code coverage does not decrease (if any source code was changed)
- [x] Appropriate docs were updated (if necessary)
- [x] Make sure to add `!` if this involve a breaking change
🛠️ Fixes #<issue_number_goes_here>
## Description
- Adds a read-only PostgreSQL prebuilt tool
`list_autovacuum_configurations`, that returns the autovacuum
configurations name and corresponding settings from pg_settings view.
- Adds a read-only PostgreSQL prebuilt tool
`list_memory_configurations`, that returns the memory configurations
name and corresponding settings from `pg_settings` view.
- Adds a read-only PostgreSQL prebuilt tool `list_top_bloated_tables`,
that returns the top N tables based of dead tuple count. Each row
includes: `schema_name`, `relation_name`, `live_tuple`, `dead_tuple`,
`dead_tuple_percentage`, `last_vacuum`, `last_autovacuum`,
`last_analyze`, `last_autoanalyze`.
- Parameters supported:
- `limit` (optional): Maximum numbers of results to return. Default: 50
- Adds a read-only PostgreSQL prebuilt tool `list_replication_slots`,
that returns the details of replication slots and WAL retained on it
Each row includes: `slot_name`, `slot_type`, `plugin`, `database`,
`temporary`, `active`, `restart_lsn`, `confirmed_flush_lsn`,
`catalog_min`, `retained_wal`.
- Adds a read-only PostgreSQL prebuilt tool `list_invalid_indexes`, that
returns the details of invalid indexes present in database. Each row
includes: `schema_name`, `index_name`, `table_name`, `index_size`,
`indisready`, `indisvalid`, `index_def`.
- Adds a read-only PostgreSQL prebuilt tool, `get_query_plan`, that
returns the optimizer’s estimated plan for a single SQL statement using
`EXPLAIN (FORMAT JSON)`—without executing the query. Output includes
node types, estimated rows, costs, width, and planner/JIT details when
available. Safe for production use in plan inspection, regression
checks, and query tuning workflows.
**Test Output**
- `list_autovacuum_configurations`
<img width="1442" height="734" alt="image"
src="https://github.com/user-attachments/assets/776b7c78-eefb-4e2a-b71b-5555cbbd7664"
/>
- `list_memory_configurations`
<img width="1423" height="728" alt="image"
src="https://github.com/user-attachments/assets/10167440-c36c-4ee8-83b9-a6ff017d7cb3"
/>
- `list_top_bloated_tables`
<img width="1424" height="733" alt="image"
src="https://github.com/user-attachments/assets/fca3f03c-e6ca-451a-849d-24f2eee058f5"
/>
- `list_replication_slots`
<img width="1411" height="727" alt="image"
src="https://github.com/user-attachments/assets/b0161bdd-ca84-4d4e-81bb-31181856c823"
/>
- `list_invalid_indexes`
<img width="1413" height="731" alt="image"
src="https://github.com/user-attachments/assets/26145cb7-2dfb-40dd-a519-138489e3f1a6"
/>
- `get_query_plan `
<img width="1437" height="727" alt="image"
src="https://github.com/user-attachments/assets/bf674ef6-86a2-4de5-b1d7-78b62cf4928c"
/>
---
> Should include a concise description of the changes (bug or feature),
it's
> impact, along with a summary of the solution
## PR Checklist
---
> Thank you for opening a Pull Request! Before submitting your PR, there
are a
> few things you can do to make sure it goes smoothly:
- [x] Make sure you reviewed
[CONTRIBUTING.md](https://github.com/googleapis/genai-toolbox/blob/main/CONTRIBUTING.md)
- [x] Make sure to open an issue as a
[bug/issue](https://github.com/googleapis/genai-toolbox/issues/new/choose)
before writing your code! That way we can discuss the change, evaluate
designs, and agree on the general idea
- [x] Ensure the tests and linter pass
- [x] Code coverage does not decrease (if any source code was changed)
- [x] Appropriate docs were updated (if necessary)
- [x] Make sure to add `!` if this involve a breaking change
🛠️ Fixes #<issue_number_goes_here>
---------
Co-authored-by: Averi Kitsch <akitsch@google.com>
## Description
Adds a PostgreSQL tool kind `postgres-list-active-queries` that returns
the top N currently running queries (`state='active'`) from
`pg_stat_activity`, ordered by longest running first. Each row includes:
`pid`, `user`, `database`, `application_name`, `client_addr`, `state`,
`wait_event_type`, `wait_event`, `backend_start`, `xact_start`,
`query_start`, computed `duration`, and `query` (SQL text).
Parameters supported
- `min_duration` (optional) — only include queries running at least this
long (e.g., "1 minute", "2 seconds").
- `exclude_application_names`(optional) — comma-separated list of
application_name values to exclude (e.g., "psql,pgAdmin 4,my-batch").
- `limit` (optional) — max rows to return (default 50).
**Test Output**
- Test without filter:
<img width="1439" height="894" alt="image"
src="https://github.com/user-attachments/assets/92009211-4f71-4830-a689-4fd2f0558477"
/>
- Test with filter, but response
<img width="1451" height="893" alt="image"
src="https://github.com/user-attachments/assets/903a0fc4-ad3e-4e9f-aacd-0b6349addc94"
/>
- Test with filter, but no response
<img width="1411" height="896" alt="image"
src="https://github.com/user-attachments/assets/a4d74883-11cc-402f-abcf-cd998e247209"
/>
---
> Should include a concise description of the changes (bug or feature),
it's
> impact, along with a summary of the solution
## PR Checklist
---
> Thank you for opening a Pull Request! Before submitting your PR, there
are a
> few things you can do to make sure it goes smoothly:
- [x] Make sure you reviewed
[CONTRIBUTING.md](https://github.com/googleapis/genai-toolbox/blob/main/CONTRIBUTING.md)
- [x] Make sure to open an issue as a
[bug/issue](https://github.com/googleapis/genai-toolbox/issues/new/choose)
before writing your code! That way we can discuss the change, evaluate
designs, and agree on the general idea
- [x] Ensure the tests and linter pass
- [x] Code coverage does not decrease (if any source code was changed)
- [x] Appropriate docs were updated (if necessary)
- [x] Make sure to add `!` if this involve a breaking change
Co-authored-by: Yuan Teoh <45984206+Yuan325@users.noreply.github.com>
## Description
---
This PR updates the naming conventions across prebuilt tool
configuration files to improve consistency:
__Changes:__
- __Toolset names__: Changed from hyphen-separated to
underscore-separated format (e.g., `firestore-database-tools` →
`firestore_database_tools`)
- __Tool names__: Removed product name prefixes for cleaner naming and
using underscore-separated format (e.g., `firestore-get-documents` →
`get_documents`, `alloydb-create-cluster` → `create_cluster`)
- __Copyright headers__: Added missing copyright headers to
configuration files
- __Test updates__: Updated `cmd/root_test.go` to reflect the new naming
conventions
## PR Checklist
---
> Thank you for opening a Pull Request! Before submitting your PR, there
are a
> few things you can do to make sure it goes smoothly:
- [x] Make sure you reviewed
[CONTRIBUTING.md](https://github.com/googleapis/genai-toolbox/blob/main/CONTRIBUTING.md)
- [x] Make sure to open an issue as a
[bug/issue](https://github.com/googleapis/genai-toolbox/issues/new/choose)
before writing your code! That way we can discuss the change, evaluate
designs, and agree on the general idea
- [x] Ensure the tests and linter pass
- [x] Code coverage does not decrease (if any source code was changed)
- [x] Appropriate docs were updated (if necessary)
- [x] Make sure to add `!` if this involve a breaking change
## Description
---
This pull request introduces a new custom tool kind
`postgres-list-tables` that allows users to list tables within a
Postgres database.
### Example Configuration
```yaml
tools:
postgres_list_tables:
kind: postgres-list-tables
source: postgres-source
description: Use this tool to retrieve schema information for all or specified tables. Output format can be simple (only table names) or detailed.
```
### Example Request
```
curl -X POST http://127.0.0.1:5000/api/tool/postgres_list_tables/invoke \
-H "Content-Type: application/json" \
-d '{
"table_names": "users",
"output_format": "simple"
}'
```
## PR Checklist
---
> Thank you for opening a Pull Request! Before submitting your PR, there
are a
> few things you can do to make sure it goes smoothly:
- [x] Make sure you reviewed
[CONTRIBUTING.md](https://github.com/googleapis/genai-toolbox/blob/main/CONTRIBUTING.md)
- [ ] Make sure to open an issue as a
[bug/issue](https://github.com/googleapis/langchain-google-alloydb-pg-python/issues/new/choose)
before writing your code! That way we can discuss the change, evaluate
designs, and agree on the general idea
- [x] Ensure the tests and linter pass
- [x] Code coverage does not decrease (if any source code was changed)
- [x] Appropriate docs were updated (if necessary)
- [x] Make sure to add `!` if this involve a breaking change
---------
Co-authored-by: Averi Kitsch <akitsch@google.com>
## Description
Provide default values for prebuilt tools
## PR Checklist
---
> Thank you for opening a Pull Request! Before submitting your PR, there
are a
> few things you can do to make sure it goes smoothly:
- [ ] Make sure you reviewed
[CONTRIBUTING.md](https://github.com/googleapis/genai-toolbox/blob/main/CONTRIBUTING.md)
- [ ] Make sure to open an issue as a
[bug/issue](https://github.com/googleapis/genai-toolbox/issues/new/choose)
before writing your code! That way we can discuss the change, evaluate
designs, and agree on the general idea
- [ ] Ensure the tests and linter pass
- [ ] Code coverage does not decrease (if any source code was changed)
- [ ] Appropriate docs were updated (if necessary)
- [ ] Make sure to add `!` if this involve a breaking change
🛠️ Fixes #<issue_number_goes_here>
Introduces a new --prebuilt <source_type> flag. This flag is mutually
exclusive with the existing --tools-file flag.
Added a new directory cmd/prebuiltconfigs/ to store the prebuilt
tools.yaml files (e.g., alloydb.yaml, postgres.yaml, etc.).
These YAML files are embedded into the Go binary using the //go:embed
directive.
---------
Co-authored-by: Averi Kitsch <akitsch@google.com>
